Yarn winding machine



2 Sheets-Sheet l June 20, '1939. w SHAW YARN WINDING MACHINE Filed July 1e, 193? June 20, 1939. w. SHAW 2,163,328

' YARN WINDING'MAQHINE Filed July 16, 1937 2 Sheets-Shea?l 2 Patented June 20, 1939 UNITED stares YARN wiNniNo MACHINE Walter Shaw, Hudderseld, England Application .luly 16, 1937, Serial No. 154,053 l In Great Britain July 21, 1936 l0 Claims.

The invention' relates to machines for winding yarns and particularly for yarns such as those of silk or artificialv silk, although the mechanism constituting the invention may equally well be employed. in the winding of yarns of other material or filaments suchr 4as wire.

An object of the invention is to provide mechanism which when used for the winding of iine yarns such as silk or articial silk will enable this to be done at a very high speed without damage to the yarns.

Another object is to provide, in a simple manner, for easy adjustment to meet trade requirements such as variations inthe diameter, length and build of yarn or filament masses.

Another object is to provide means whereby the starting and stopping of the winding will be effected gradually whilst at the same time, making provision for quick stopping of the winding spindle if the supply of yarn or'material being wound should fail.

Another object is to provide what is termed creep mechanism, or means to prevent synchronism between the speed at which the winding spindle rotates and that of the means`by which the yarn or the like is traversed, the object being to prevent successive layersY of the material being wound from being deposited exactly above one another. v

The accompanying drawings illustrate an embodiment of the invention suitable for winding pirns and like masses of yarn or material,

ln these drawings,

Fig. l is a sectional elevation; and

Fig. 2 a sectional plan View, in more or less diagrammatic form, of the winding unit;

Figs. 3 and 4 are, respectively, an elevation and a plan view of the drive for the traverse guide for the` yarn or other material;

Figs. 5 and 6 are, respectively, a plan view and a side elevation of the means whereby an innite-ly variable adjustment of the rate of traverse is obtainable; v

Fig. 'l is a sectional elevation of the means for i enabling a slow start and stop or, in case of necessity, a quick stop of the winding spindle to be obtained; and

Figs. 8 and 9 are, respectively, an end view and a sectional elevation, of the creep mechanism whereby synchronism is destroyed between the speed of the winding spindle and the rate of tra- Verse of the material being wound.

Referring to the drawings, a winding spindle I journalled in bearings, 2, 2, in a casing or housing 3., is adapted to receive rotary motion from a friction plate 4 driven by means not shown. A friction disc 5 loose on the spindle is adapted to be moved longitudinally along the spindle and thus into or out of engagement with the driven plate fi. The disc 5 is disposedbetween two coiled springs t and 'l on the spindle I, the spring 6 being located between the disc and a collar 8 fast on thek spindle and the spring l being located between the disc and a collar 9 slidable on the spindle. Hub 9a of collar 9 has a removable `pin Qi) slidably engaging in keyway 9c of spindle I (see Fig. l). The ends of the spring 6 are connected respectively to the collar 8 and to the disc 5 so that the latter transmits drive by the torsion. of the spring S to the spindle I.

The slidable collar 9 is engaged by a fork I carried by a spindle II which is movable longitudinally. A piston I2 fast on the spindle II is arranged to work in a cylinder I3 having at each end an outlet orifice I4 or I5 of normally restricted area, so that endwise movement can only be given to the spindle I at a determined slow rate. The spindle I I is movable in one direction, effective to start the winding operation, by meansof a starting handle I6.

A spring Ii surrounding the spindle I I is conned between a xed part I8v and a collar I9 on the spindle, and the latter carries a catch block 2S which is adapted, when the starting handle it is moved to start up the winding spindle, to engage behind a trip lever 2Q and thus hold the spring Il compressed,` so that whenV the trip lever 2li is released the spring Il can operate to effect stoppage of winding.

The winding spindle l has fast upon it a doublethreaded worin or reversing screw 2l, that is to say one with intersecting threads extending from end to end in each direction, as will be seen from Figs. 3 and 4. A nut block 22 carried pivotally by a sliding member 23 engages with the screw or worm ZI and at the ends of the latter there are provided cam blocks 24 and 25 which at each end of each traverse rock the nut block 22 and automatically switch it over from one thread to the other of the Worm 2l, so that the direction of longitudinal motion of the nut block and thus of the member 23 is reversed.

During its traverse alo-ng the worm, the block 22 is held against rocking movement by the engagement of a pin 26, carried by an arm 21 fast on the spindle 28 of the nut block, in a xed guide slot 29.

Carried by the member 23 are two rods 3D and 151.Vv f

3| which extend and are guided for movement in a plane parallelto the Winding spindle' Land in alignment with the rod 3| is a rod or member 32 which I will term the traverse spindle. This traverse spindle is screw-threaded for a portion of its length as at 32 and on this threaded portion works the internally-threaded boss of a traverse guide 33 which extends over and is adapted to guide the yarn or material on to the winding spindle. A strut 34 joins the rod 30 with the traverse spindle 32.

Mounted on the traverse spindle 32 is the inner member of a suitable form of one-way clutch the outer member 35 of which carries a pin 35 which is adapted to Work in a slot 36 in an angularly adjustable part or lever 36. If the part 36 is set in any position in which the slot 36' is at an angle from the horizontal the clutch will receive at each reciprocation of the traverse spindle in one direction, an oscillating or partial rotary movement which will cause a determined longitudinal movement of the traverse guide along its spindle, suitable means not shown being provided to restrain the traverse guide 33 from rotary movement. To prevent any possibility of the traverse spindle 32 being given any rotary movement during what may be termed the return stroke, I may provide a suitable form of brake or a second one-way clutch 31 adapted to permit of the traverse spindle 32 being rotated in the direction eifected by the clutch member 35 30 ibut` to hold the spindle against rotation in the opposite direction. It may be preferable, however, to provide two slotted levers such as 36 set at opposite angles as indicated in Fig. 6, the second slotted lever, indicated in dotted lines, acting astiupon the outer member of the clutch 31. By this means the traverse spindle will be partially rotated in each direction of its traverse and will receive a continuous longitudinal displacement instead of being moved only during one direction of its reciprocation.

The adjustment of the angularity of the slotted lever 36 may be eiected by forming its end with teeth 38 after the manner of a quadrant and arranging for these teeth to mesh with a gear 39 fast on a spindle 40 extending to the exterior iof the casing and carrying a graduated knob 4| or a pointer arranged to work in conjunction with a calibrated scale 42 on the casing 3. It is thus possible, by appropriate adjustment of the lever provided a simple and eiective winding mecha- 36, or of both of such levers if two are employed,

`to regulate with accuracy the diameter and thus the length of yarn given to the pirn or other mass being wound and the building of the yarn mass is effected without the use of any cup or contact `member bearing on the yarn.

The use of the double-threaded worm 2| :for effecting the traverse of the guide 33 is important, in that it enables the necessary reduction between the speed of rotation of the winding spindle and the rate of traverse of the guide to be effected without the use of any gearing.

If yarn or other material is being wound in the form of cheeses, the slotted plate 36 may,

instead of being arranged to give gradual longitudinal movement to the traverse guide 33, be arranged to tilt the guide gradually away from the mass being Wound s o as to maintain constant the distance between the guide and the surface of the mass being wound as the latter increases in diameter.

In order to effect a quickfstoppage of the winding spindle if the supply of yarn or other material being wound should fail, the material is led to the traverse guide 33 over a pulley 50, mounted on a. pivoted arm 5|. A connection 52 from this pivoted arm is led to a lever 43 pivoted on the casing 3. A connection 44 is led from the lever 43 to a valve member 45 controlling the area of the orifices I4 and l5 in the dash-pot cylinder 3, and a heel or projection 43 on the lever 43 is adapted to engage the trip lever 20.

If the supply of material should fail, the pivoted lever 5| referred to as carrying a pulley 50 over which the material is led to the traverse guide will be allowed to fall and in so doing it disengages the trip lever 20 and at the same time operates the sliding valve member 45 to increase the area of the orifices |4 and 5 in the dash-pot cylinder |3 and thus allow the piston |2 to move rapidly along the cylinder.

In order to destroy synchronism between the speed at which the winding spindle rotates and the rate at which the material being wound is traversed, the winding spindle may as shown in Fig. 8 be divided at a suitable point in its length, preferably within the housing 3, as indicated in dotted lines in Fig. 2, into two parts 32 and322. The part 32', which is the part receiving drive, has fast upon it an externallytoothed pinion 46 having a. certain number of teeth. This pinion 46 meshes with a revolvablysupported internally-toothed ring 41. Conveniently the n'ng 41 may be carried by the inner race 48 of a ball or roller bearing. The ring 41 has one, two or more teeth more than the pinion 46, and the pitch diameters of the two thus vary slightly, causing the centres of rotation to be offset by a small amount.

The ring 41 has a series of lateral projections or dogs 41 which register in radial slots 48 in a sleeve member l48 fast upon the part 322 of the winding spindle. Alternatively, the sleeve member 48 may be fast upon a shaft from which the winding spindle, or it may be a series of such spindles, is driven.

The winding spindle or spindles is or are thus driven at a speed very slightly below that of the traverse guide, which is actuated from the part 32', the dog and slot connection between the internally-toothed ring 41 and the sleeve member 48 making compensation as it Were for the slightly eccentric orbit of thetoothed ring in relation to the part 322 of the spindle.

It will be seen from the foregoing that I have nism in which the building of a yarn or like mass can be eiected without any rubbing contact on the material, and in which a slow starting and stopping of the Winding spindle is obtained, with provision for a quick stoppage if the supply of material should fail. The slow starting and stopping arrangement is of particular advantage when running at very high speeds.

It will be recognised that the construction and arrangement of the mechanism may, Within the scope of the invention, be varied in detail from the particular embodiment I have described and illustrated.

Having thus described my invention, what I claim as new and desire to secure by Letters Patent isz- 1. In a winding machine a Winding spindle and means for driving same, a traverse guide for guiding the material to be Wound, a slidable member carrying said traverse guide, a reversing wormv carried by the Winding spindle, a nut block carried pivotally by the slidable member carrying the traverse guide and cam members at the ends of the reversing worm arranged to rock the nut block at each end of each traverse and thus reverse the direction of movement imparted to the traverse guide.

2. In a Winding machine, a winding spindle and means for driving the same, a traverse spindle slidably mounted parallel to the winding spindle, means driven from the Winding spindle to reciprocate the traverse spindle, a threaded part on said traverse spindle, a traverse guide mounted on said threaded part of the traverse spindle, a one-way clutch the inner member of which is fast with the traverse spindle and the outer member of which has a projecting pin, an angularly adjustable lever, a slot in said lever in which the projecting pin on the outer clutch member registers and means for adjusting the angularity of the lever.

3. In a Winding machine, a winding spindle and means for driving the same, a traverse spindle slidably mounted parallel to the winding spindle, means. driven from the Winding spindle to recip-rocate the traverse spindle, a threaded part on said traverse spindle, a traverse guide mounted on said threaded part of the traverse spindle, a one-way clutch the inner member of which is fast with the traverse spindle and the outer member of which has a projecting pin, an angularly adjustable lever, a slot in said lever in which the projecting pin on the outer clutch member registers, means for adjusting the angularity of the lever. and means for preventing backward rotation oi the traverse spindle.

4. In a winding machine, a winding spindle and means for driving the same, a traverse spindle slidably mounted parallel to the winding spindle, means driven from the winding spindle to reciprocate the traverse spindle, a threaded part on said traverse spindle, a traverse guide mounted on said threaded part of the traverse spindle, two oppositely-Working one-way clutches having their inner members fast on the traverse spindle and the outer members of which have each a projecting pin, two angularly-adjustable levers having slots in which the pins of the outer clutch members register, the slots in said levers being set at opposite angles so that in one direction of reciprocation of the traverse spindle one of the one-way clutches will rotate the traverse spindle and in the other direction of reciprocation the other one-way clutch will rotate the said spindle, and means for varying the angularity of the slotted levers.

5. In a winding machine a winding spindle, and means for driving same controlled by a longitudinally movable member, a piston fast on said longitudinally movable member, a cylinder in which said piston works, said cylinder having at each end an orice of restricted area whereby the movement of the longitudinally movable member to effect starting or stopping of the winding spindle can only be effected at a determined sloW rate.

6. In a winding machine a winding spindle and means for driving same controlled by a longitudinally movable member, a piston fast on said longitudinally movable member, a cylinder in which said piston works, said cylinder having at each end an orifice of restricted area whereby the movement of the longitudinally movable member to effect starting or stopping of the winding spindle can only be effected at a determined slow rate, a spring against the action of which the longitudinally movable member is movable to eiect starting of the winding spindle, a catch block on the longitudinally movable member, a trip lever adapted to engage said catch block when the longitudinally movable member has been moved into starting position and means to trip the said lever when the winding is to be stopped.

'7. In a winding machine having mechanism according to claim 6, a valve member operative to control the area of the orifices in the cylinder rei-erred to and means whereby when the supply of material being wound fails, said valve member is operated to increase the area of the orices it controls and at the same time the trip lever is tripped, so that the piston may move rapidly in the cylinder and the winding spindle be stopped quickly.

8. In a Winding machine a winding spindle, a'

driven spindle in alignment therewith and means for driving said driven spindle, an externally toothed pinion on said driven spindle, a revolvably-supported internally-toothed ring with which the externally toothed pinion meshes, said internally-toothed ring having a greater number of teeth than the said pinion, a series of laterally projecting dogs on the yinternally-toothed ring and a sleeve member fast on the winding spindle and having a series of radial slots in which said dogs register, whereby the winding spindle is driven at a speed very slightly below that of the driven spindle.

9. The structure of claim 1, and means for holding said nut block against rocking movement during its traverse along the Worm.

l0. 'Ihe structure of claim 1, and means for holding said nut block against rocking movement during its traverse along the worm, said means comprising a xed guide slot, an arm attached to said nut block, and a pin carried by said arm for engaging said guide slot.

WALTER SHAW. 

